Photographic camera



I P. DIETZ PHOTOGRAPHIC CAMERA. 'APPLIQATION FIL ED. DEC-22, 1916.

:0 5 m I l- 63 w How-421 H W-H PAUL DIETZ, OF PHILADELPHIA, PEhl'NSYLVANIA.

- PHOTOGRAPHIC CAMERA.

Spe ific'ation of Letters Patent.

' Application filed December 22, 1916. Serial No. 138,386.

To all whom it may concem:

Be it known that I, PAUL Draw, a cltizen of the United States, and a resident of Philadelphia, count of Philadelphia, State of 7 Pennsylvania, ave invented certain new and useful Improvements in Photographic Cameras, of which the following is a specification.

This invention has reference to improve ments in photographic cameras for films.

It pertains particularly to a camera in which the devices for tensioning. the shutter and for moving a new film portion before the lens are automatically actuated in a novel, simple and precise mannerL The present invention is preferablyapplied to that type of cameras which are opened. automatically when a button protruding beyond one pressed or pushed in. The front door then goes down and the objective plate with the I into the right position for taking a picture.

' slipping.

en the picture has been taken the closing ofthe camera is initiated by moving in the objective whereby the, shutter is tensioned for the next exposure and finished preferably by closing of the front door, whereby the exposed film is wound up and a new film portion is moving in that field.

The camera can be operated automatically or in the old'way, the shutter can be tensioned, and the film winding mechanism can be operated by hand independently, for instance, when a. new film is to be inserted or the exposed film is to be taken out.

Under certain circumstances itmay be desirable to close the door without tak ng pictures, for instance, when a moving ob ect disappears too quickly. Then-the film winding device will be released by pressing a butside of the camera isobjective thereon is automatically moved every time up to the same heightwhereby the usual tenslomn device is uniformly actuated. According y the importance of the slide rests in its predetermined end position.

When the front door has moved down by pressing the,side button herein mentioned and the objective has moved out and is in position for taking a picture the only thing required is to release the shutter by hand or by means of the cable release and the icture then is taken. If the objective is pus ed back into the camera the shutterbecomes tensioned by the upward movement of the sliding bar with nose.

The movement of the film is effected by the movement of the front door, preferably wh le the door is being closed. After the objective has been pushed in the front door is closed/ g g In order to renderthe invention entirely clear reference is had to the accompanying drawing in which:

,igure 1 represents in front elevation the open camera with the top and bottom portions broken away, embodying in desirable form the present improvements.

Patented Mar. 29', 1921.

ig. 2 is .a detail view of the tensioning devlce.

Fig. 3 illustrates the camera in side elevation with the lower part in section, showin the'film moving mechanism.

ig." 4 is a detail view of a modified form I of film moving mechanism.

Fig. 5 illustrates in rear elevation partly broken away the film rolling device with the rear door of'the camera opened.

Fig. 6 is a detail view of the film'guide rollers for retaining the film on the drum.

F ig. 7 is a detail view of the shutter tensioning slide.

' Similar characters of reference denote like parts in all the figures.

In the drawing (1 represents the casing which consists of a rear section or door a, the front door a and a rigid section a below the front door. The rear door swings on the .hinge b at the bottom of the casing and the front door. swings on the hinge a mounted at its bottom end adjoining the rigid section a Within the casing. the entire mechanism is mounted. In Fig. 1 of the drawing the camera is shown opened and the front door a is down. The objective or lens d connected with the shutter f on the objective plate is then has moved automatically into the right position for taking a picture. The shutter 7 is released by a hand operated lever g or a cable release g in the usual manner. The shutter shown represents a segment shutter but any other kind of shutter may be used. When a picture has been taken the camera is closed. First the objective .is

moved in with the lazy tongs device composed of an arrangement of bars 2', 7' similar to toggle levers. The lever 71 has on its end a pin 1? extending through a slot 6 The bar 6 is connected with the front standard is which has a similar slot is coincident with the slot 6 While moving in the objective the shutter is tensioned in a novel manner. A slide-bar Z having slots Z Z is moved up by the inward movement of the objective.

A nose Z provided nearly in the middle of the slide bar then pushesv up anextension m of a disk m. Behind the disk m a gear wheel n, in connection with this disk is mounted on the shutter casing. This gear wheel a actuates a pinion. 0 under a cover 0 said pinion being mounted on the shutter tensioning device. By the movement of the gear and pinion the usual shutter tensioning device is operated. However the upward movement of the slide bar Z is limited by the slots therein and therefore the slide moves up every time-to the same height and the shutter is tensioned every time in a uniform;

manner.

Assuming now that the objective has been completely pushed in and the shutter tensioned then the front door is closed. By the upward movement of the door the toothed segment q mounted on the front door actuates the toothed rack 1- which in turn moves the pinion s. This pinion is loosely mounted uponthe shaft t of the film moving drum t which is moved when the door is closed by mechanism hereinafter described. The ratchet a formed on the adjoining surface end portion of the drum t is engaged by a plawl '22 mounted on the extended hub s of t e pinion s so that the drum moves in but one direction. Thus the pawl '22 moves the ratchet u of the drum and thereby the I drum itself.

' film is wound up on the reel at a time. For

the purpose of insuringa steady movement of the film the drum t is provided on its outer end portions with fine pins 2, 3, for drawing the film along and preventing slipplng. Film guiding rollers 4, 5 are mounted within the camera in the usual manner.

By virtue of the pawl and ratchet mechanism the film winding device also can move in but one direction.

A modified form of film moving mechanism is shown in detail in Fig. 4e. On the door a there is the toothed segment 9 as before described. This segment engages a pinion 6 which is connected with a gear 7 upon the same shaft. The gear 7 engages the pinion s loosely mounted on the shaft t of the film moving drum 1?. By this arrangement a transmission is effected which allows of reducing the diameter ofthe film moving drum whereby the length of the entire camera is reduced in proportion.

As shown in Fig.5 the film spool or reelhas an extension 8 on the driving side where the sheave a is located. This extension reachesbeyond the casing and has on its outer end portion a key 9. By means of the key the protective end portions of the film may be wound upon the reel independent from the film moving drum and the mechanism in connection therewith or, if

' desired, a film portion of a picture length may be wound thereby.

Under certam circumstances it may be dey sirable to close the door without taking a picture for instance when a moving ob ect 1 disappears too quickly. In order to prevent the movement of the film the rack 1* shown in Fig. 3 is moved out of connection with the toothed segment q, for instance by means of the lever 10 passing through the camera casing. Likewise the pinion, connected to the gear 7, may be moved out of engagement with the toothed segment 9 by similar mechanism. In order to maintain the adjustment when this mechanism is released a stop 11 is provided on the wall of the casing and the rack 1" has a shoulder 12 then resting upon the said stop or a tooth 13 mounted on the casing engages the gear 7.

If the automatic device now works again the original adjustment is maintained.

I .clalm as my lnventionz 1. A photographic camera for films comprising means for closing the camera in two operations, and means for setting the camera for the next. p cture automatically actuated by the two closing operations of the camera,

ready for exposureafter the camera is opened.

2. A photographic camera for films comprising an objective, a shutter, a front door,

and mechanism for placing the camera in condition to take the next picture, automatically operated by the inward movement of tdhe objective and the movements of the front oor.

3. A photographic camera for films com- 139 sheave, and means for transmitting the mo- 1 prising an objective, a shutter, a front door, and mechanism for setting the camera for the next picture while closin it, automatically operated by the inward movement of the objective for tensioningthe shutter and the movement pf the closing door for advancing one picture length of the film, ready. for exposure after t e camera is opened.

4. A photographic camera forfilms comprising an objectlve, a shutter, a front door, mechanism for settin the camera automatically for the next picture while closing it composed essentially of a slide with nose raised by the inward movement of the objective whereby the shutter is tensioned, and means for advancing one picture length of film actuated by the movement of the closing front door, ready for exposure after the camera 1s opened.

' 5. A photographic camera for films comprising an objective, a shutter, a front door, I a shutter tensioning mechanism automatically operated by the inward movement of the objective and composed essentially of a, slide with nose raised by the inward movement of the objective, a gear with disk and extension moved up by the nose of the rising slide, and a pinion engaged by the gear, and means film-by door. 6. A photographic camera for films comprising an objective, a shutter, a front door, a shutter tensioning mechanism automatically operated by the inward movement of the objective. and composed essentially of a slide with nose raised by the inwardmovement-.of the objective, a toothed segment on the front door, means operated thereby, comprising a pinion, and film moving mechanism operated by the pinion.

7. In a photographiccamera, a front the movement of the closing front door,

" means foi automatically moving the film one picture length by the movement of the door comprising a toothed segment on the door, means operated thereby comprising a pinion,

V and a film moving drum on the same shaft with the pinion.

8. I means for automatically moving the film one picture length by the movement of the door comprising a toothed segment on the door, means operated thereby comprising a pinion, a film moving drum on the same shaft with the pinion, a sheave on the drum, a reel with tion from the drum to the reel.

'9. In a photographic camera for films a film, a front door, moving drum, means for for moving one picture length of for automatlcally n a .photographic camera, a door,

the pawl so as to allow of the movement of I I the drum in but one direction.

10. In a photographic camera for films, means for closing the camera in two operations, mechanism for setting the camera automatically for the next picture by the two closing operations of the camera, means for 'releaslng said mechanism, and means for releaslng said mechanism, and a stop for maintaining the released mechanism in its adjusted position, ready for exposure after the camera is opened. 12. A photographic camera for films,

ing the camera, and means for automatically setting the camera for the next picture actuated by the closing operations of the camera, ready for exposure after the camera is opened.

13. A photo aphic camera for films, comprising an objective, 2. front door, means opening the camera, and mechanism for placing the camera in condition to takefthe next picture, automatithe objective and the hnovements of the front door. f 3 I 14. A photographic camera for films, comprising an objective, a shutter, a front door, means for automatically opening the .camera, and mechanism for setting the I comprising means' for automatically opencally operated by the inward movement of 15. A photographic camera for films, comprising an objective, a shutter, a front door, means for automatically opening the camera, and mechanism for setting the camera automatically for the next picture while closing it composed essentially of a slide with nose raised by the inwardmovement of the objective whereby the shutter is tension'ed, and means for advancing one picture length 101: film actuated by the'movement of the closing front door, ready for exposureafter the camera is opened.

. 16.A photographic camera for films, comprising an objective, a-shutter, a front door, means for automatically opening the camera, shutter tensionin mechanism automaticall operated by t inward movement'of t e objective andcomposed essentially of'a slide with nose raised by the inmatically operated by the inward movement of the objective and composed essentially of a slide with nose raised by the inward movement of the objective, a toothed segment on the front door, means operated thereby, comprising a pinion, and film moving mechanism operated by the pinion.

18. In a photographic camera for films, a front door, means for automatically opening the camera, and means for automatically moving the film one picture length by the movement of the door comprising a toothed segment on the door, means operated thereby comprising a pinion, and a film moving drum on same shaft with the pinion.

19. In a photographic camera for films, a front door, means for automatically opening the camera, means for automatically moving the film one picture length. by the movement of the door comprising a toothed segment on the door, means operated thereby comprising a pinion, and a film moving drum on same shaft with the pinion, a

, sheave on the drum, a reel with sheave, and

means for transmitting the motion from the drum to the reel.

20. In a photographic camera. for films,-

a front door, means for automatically opening the camera, a film moving drum, means for actuating the drum automatically by the movement of the front door comprising a pinion on the-shaft of the drum, an extended hub on said pinion, a pawl on the extension, and an internal ratchet formed at the adjoining end of the drum and engaged by the pawl so as to allow of the movement of the drum in but one direction.

21. In a photographic camera for films, a front door, means for automatically opening the camera, means for moving the film automatically by the movement of the'front door and means for moving the film by hand independently from the automatic device comprising the reel and a key thereon, and means for allowing both the film-moving and winding means to turn in but one direction.

22. In a photographic camera for films, means for automatically opening the camera, mechanism for setting the camera automatically for the next picture by the closing operations of the camera, means for releasing said mechanism, and means for maintaining the released mechanism in its nevaeoe adjusted position, ready for exposure after the camera is opened.

23. In a photographic camera for films,

means for automatically opening the camera, mechanism for setting the camera automatically for the next picture by the closing operations of the camera, means for releasing said mechanism, and a stop for maintaining the released mechanism in @s adjusted position, ready for exposure after the camera is opened. I

24. In a photographic camera for films, a front door, means for automatically opening the camera, and means for moving the film actuated by the closing operation of the front door. V

25. In a photographic camera for films, ashutter, means for setting the shutter by pushing it into the camera as first operation, a front door on the camera, and means for moving the film by the closing operation of the front door as second operation.

26. In a photographic camera for films, means for automatically opening the cam era, a shutter, means for setting the shutter by pushing it into the camera, a front door on the camera, and means for moving the film by the closing operation of the front oor.

27. In a photographic camera for films, a shutter, means for first automatically setting the shutter, a front door on the camera,

and means for moving the film automatically, after the shutter has been set, by the closing operation of the front door. e

28. In a photographic camera for films, means for automatically opening the camera, a shutter, means for first automatically setting the shutter, a front door on the camera, and means for moving the film automatically,- after, the shutter. has been set, by the closing operation of the front door.

29. In a photographic camera for films,

separate means for automatically setting the shutter and automatically moving the film actuated by the closing operations of the camera.

30. In a photographic camera for films, means for automatically opening the camera, and separate means for automatically setting the shutter and automatically moving the film actuated by the closing operations of the camera.

31. A folding camera for films, comprising an objective, automatic means for placing the objective in position for exposure of a portlon of the film, and means for moving a fresh portion of the film into the field of exposure actuated automatically by the operation of the folding of said camera.

32. A folding-camera for films, comprising a setting shutter, an objective, automatically operatingmeans for moving said objective from one inoperative position to one 1,s72,so3 a for taking a pictnre, means actuated by door front to move a fresh portion of the moving said objective in the reverse direcfilm into position for exposure.

10 tion for setting the said shutter, a hinged Signed at New York, N. Y., this 21st day front door for said camera adapted to supof December, 1916.

6 port said objective when in the open posiv PAUL DIETZ.

tion and to serve as a protection for said Witnesses: objective withln the camera when closed, LILLEY E. Scatter,

and means actuated by the operation of said WILLIAM SANGER. 

